Science & Mathematics - 18 October 2007

A glass apparatus contains 2 gases separated by a valve in the middle which contains 2.00 L of H2 on one side, and 1.00 L of N2 on the other side.

Consider the 2.00 L of H2 at a pressure of 415 torr and 1.00 L of N2 at an unknown pressure. If the total pressure in the flasks is 303 torr after the stopcock is opened, determine the initial pressure of N2 in the 1.00 L flask

Thanks!

2007-10-18 02:04:14 · 3 answers · asked by db 3 in Chemistry

0 ⤊

What is the bone on the medial side of the orbit?

2007-10-18 01:59:12 · 3 answers · asked by Terri L 2 in Biology

2 ⤊

what is the lonliest number?

2007-10-18 01:59:02 · 9 answers · asked by Anonymous in Mathematics

2 ⤊

Gravitational, electromagnetic, and nuclear forces?

1. Why are these forces often called fundamental or basic forces?
2. Where are these forces found?
3. How are other forces related to them?

2007-10-18 01:58:50 · 2 answers · asked by Cristina V 2 in Physics

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What is the bone that is the opening that allow blood vessels to exit trunk?

2007-10-18 01:51:25 · 1 answers · asked by Terri L 2 in Biology

3 ⤊

could there be energy from ice? if yes, how can it be harnessed?

i was thinking a topic for our investigatory project when it suddenly dawned to me if there was energy from ice. :D

2007-10-18 01:48:01 · 3 answers · asked by Anonymous in Earth Sciences & Geology

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did we use to drink water from the surface?????????

ma question is that
when did a human started to drink water from under the surface of earth
and did we use to drink the water from the surface until we didnt had some driling machines.

2007-10-18 01:44:15 · 3 answers · asked by raman g 2 in Earth Sciences & Geology

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Can you tell me about neon in a report form? (Read Details)?

I would like to know about neon. please include the resources you got your information from. Do Not plagiarise. Write it in a report form, please and thank you.

2007-10-18 01:41:30 · 1 answers · asked by JustAnotherMarionette. 6 in Chemistry

7 ⤊

first animal went the outer space?

please answer

2007-10-18 01:34:28 · 19 answers · asked by certiefydcutie 1 in Astronomy & Space

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what are the pairs of bound in each polynomial.~P(x)=x^3+5x^2-x-5~P(x)=2x^3+3x^2 +4x+6~P(x)=2x^3+9x^2 +13x+6?

2007-10-18 01:33:06 · 1 answers · asked by dino 2 in Mathematics

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what is the Earth?

I like films

2007-10-18 01:33:03 · 16 answers · asked by Rizwan Khan 1 in Astronomy & Space

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Havin' trouble, anybody that can figure this out?

A 90% confidence interval around the variance was calculated. For n=27, the confidence interval was 35.0-88.4.

2007-10-18 01:30:22 · 1 answers · asked by scrappy1 1 in Mathematics

5 ⤊

What is the deal with Area51 ?

Can sombody please tell me what Area51 is, where it is and what goes on thier?

2007-10-18 01:30:18 · 5 answers · asked by Anonymous in Astronomy & Space

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Does anyone know what the temperature of outer space is?

That would be "space" not affected by heat from the sun, ie the dark side of the moon!

2007-10-18 01:21:16 · 8 answers · asked by Anonymous in Astronomy & Space

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Is the size of an average African black man's brain larger or smaller or the same as the average white man's

2007-10-18 01:16:19 · 15 answers · asked by Anonymous in Zoology

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what are the molecular targets of clopidogrel?

2007-10-18 01:14:32 · 1 answers · asked by Anna P 1 in Chemistry

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How can scavenging animals, like buzzards and hyenas, eat rotting carcasses without getting sick?

2007-10-18 01:13:01 · 4 answers · asked by debodun 2 in Zoology

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If the earth's molten core completely cooled, would the earth shrink?

If so, by how much? Enough so that the east coast of South America would touch the west coast of Africa? Enough that the oceans would completely cover all the land? It may be a silly question but I was just wondering. Thanks for any replies.

2007-10-18 01:09:06 · 4 answers · asked by Rock 5 in Earth Sciences & Geology

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Solve by using I.F method?

(2xy^4e^y + 2xy^3 + y)dx + (x^2y^4e^y - x^2y^2-3x)dy = 0

2007-10-18 00:55:12 · 1 answers · asked by Mani 1 in Mathematics

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obtain a power series representatiion for sin(h) by integrating the given series term by term from 0 to x.?

given cos (h) = summation notation symbol(0 to infinity) of x^(2n)/(2n)! for all x.

thanks a lot for the helping hand...

2007-10-18 00:53:52 · 1 answers · asked by Anonymous in Mathematics

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In the given problem determine, whether the given equation is exact. If exact, solve?

6x^3dx + y^2(4y+9x^2)dy = 0

2007-10-18 00:53:17 · 1 answers · asked by Mani 1 in Mathematics

2 ⤊

Why don't bugs fly to the sun?

OK. I know they have a cell that senses sunlight which causes them to sleep. So does that mean when they get close to the light during the night they fall asleep at night too? It's like an alcoholic searching for liquor in a church and then falling asleep in front of a bar.

2007-10-18 00:52:47 · 10 answers · asked by Anonymous in Biology

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Who is right?

I recently did a chemistry test,
the qoestion was:

experiment A
magnesium ribbon was put in 100cm cubed acid

experiment B
magnesium ribbon was put in 50cm cubed acid and 50cm cubed dillute acid

The question was: What would be the difference in the reactions.

i wrote, no difference because both has 100cm3 acid and they both were magnesium ribbon.

my friend wrote, experiment A would be faster becasue the acid is concentrated.

we both got it right and we stayed back and asked our chemisrty teacher, thought for a while and said "go away"
lol lol lol
i didn't wanted go in more details because i got 100% and i didn't want to loose and marks.

can someone tell me who is right?

2007-10-18 00:50:11 · 8 answers · asked by :) 1 in Chemistry